Suction end-catcher in ring spinning and twisting machines



Jan. 29, 1952 c JUST SUCTION END-CATCHER IN RING SPINNING AND TWISTINGMACHINES Filed April 11. 1949 Patented Jan. 29, 1952 SUCTION END-CATCHERIN RING SPINNING AND TWISTING MACHINES Christian Just, Winterthur.Switzerland, assignor to Actiengesellschaft .loh. Jacob Rieter & Cie.,Winterthur, Switzerland Application April 11, 1949, Serial No. 86,661 InSweden April 19, 1948 My present invention relates to the arrangement ofauxiliary means for pneumatically sucking-ofi thread ends in ring framesand ring twisting frames.

7 Claims. (crew-cam her a and is rockablymounted in the main wall i, anda locking arm or detent I3 is pinned to each end of rod 12, outside theend shield. The said detents are engageable on studs I4 fixed to Inframes provided with such suction means, -5 the small sides of structureIn and project thereit has been customary to dispose portions therefrom.Further, a swing gate [5 which extends of in a special box secured tothe frame, which arover the entire width of the machine or chamberrangement, however, requires excessive space and c, is pinned to saidrod l2 so that, when dishinders the trafiic in the mill rooms. Whensetengaging the detents l3 from'the studs l4 and ting up in the mill newmachines provided with '10 swinging the same upwards to the positionshown such boxes, the additional space required therefor naturallyreduces the number of spindles which can be accommodated in the room.Such additional structural units or annexes therefore are uneconomical,so much more as various parts already present in one frame-endwall areduplicated in the said box.

The said disadvantages are avoided by the arrangement according to thepresent invention in that the motor-driven suction fan and a filter areincorporated in one of the frame end shields which is formed as a box.

The space enclosed by the said end-shield suitably is divided by afilter and an apron wall supporting the suction fan into twocompartments, F f

however, the foot portion of the end shield'has been swung open.

In Fig. l, the roller beam 2 and spindle rail 3 are fixed to the mainwall I of the end shield. An apron wall 4 provided in the upper portionof the end shield is spaced from the main Wall i and extends over theentire width of the machine, as does a filter screen 5 which togetherwith the apron wall 4 subdivides the space of the boxlike end shield intwo chambers a and b. The electric drive motor 6- is flanged to theapron wall 4, and the fan wheel 1 is pinned to the overhung shaft end ofmotor 6. A suction port 8 is formed in the main wall I coaxially of thefan wheel 3 and opens towards the machine. A central suction header orcollecting duct 9 opens into the suction port 8.

The filter or screen 5 is disposed in a swing structure I c which ispivoted on pins H to the foot of main wall I so that it may be tiltedaway from the machine. A rod 12 traverses the chain in Fig. 2,.the gatel5 shuts the bottom opening in the upper portion of chamber a. The motor6 disposed in chamber b projects through an opening in the wall [6 ofthe end shield into a hood H which has an open bottom. The fan wheel 1is disposed in the upper portion of chamber a.

The fan 1 driven by motor 6 sucks air containing fibres and perhapslengths of thread through the header 9 from the drawing means of themachine and moves the same in direction of the arrows shown towards thefilter screen 5. The fibres and broken ends are retained on the screen 5and in the chamber a, while the air traverses the screen 5 and thechamber a and flows to the outside partly through the hood I! and partlythrough the openings of a screen [8. The fibres and thread ends,collected on the filter screen 5 have to be removed from time to time.For such purpose either of the detents I3 is swung manually from itslocking position shownin Fig. 1 into the position shown in Fig. 2, theother detent l3 also being swung into such latter position through theaxle rod l2. During such rocking movement, an extension l9 provided oneach detent I3 is disengaged from the appurtenant stud M of thestructure I 0, which permits the latter to tilt to the position shown inFig. 2, and the swing gate I5 is brought into abutment against the footof the apron 4 whereby the air stream is prevented from entering thelower portion of chamber a.

The elements mounted as described on the machine for sucking-oil brokenends require only little space, and the arrangement operates veryeconomically owing to the aerodynamically favorable location of thesuction blower and filter screen. By reason of the fact that theair-outlet hood surrounds the motor to a substantial amount, the motoris well cooled so as to permit to use a fully closed motor, whichaffords a high reliability of operation. Owing to the arrangement of thefilter screen as described, the latter may be cleaned while the suctionmeans are in 3 operation so that such cleaning does not disturb thespinning operation proper.

What I claim as new and desire to secure by Letters Patent is:

1. In a textile ring frame or ring twisting 'frame having an end shieldformed as a hollow box-like structure, a motor-driven suction fanlocated in said box-like end shield, a filter screen located in thebox-like structure in position to receive air from the fan and filterout broken thread ends which have been sucked away from the textileframe by the fan.

2. In a, ring spinning or ring twisting frame having pneumatic suctionmeans for broken threads, the combination with an end shield supportinglongitudinally extending members of the frame, said end shield beingformed by a box like structure, of a partition wall within the endshield structure, a motor driven fan mounted on said partition wall, anda filter screen within said structure, said partition wall and saidfilter soreen'dividing said box-like structure into two chambers, saidsuction fan being arranged for delivering the drawn-in air stream intoone of said chambers and forcing it across said filter screen into theother chamber, whereby broken threads and fibres are collected by saidfilter screen.

3. A ring spinning or ring twisting frame as claimed'in claim 2 andcomprising an electric motor driving said suction fan, said motor beingcarried by said partition wall on one side thereof and said suction fanbeing disposed on the other side of the partition wall.

4. In a ring spinning or ring twisting frame having pneumatic suctionmeans for broken threads, the combination with an end shield supportinglongitudinally extending members of the name, saidend shield beingformed by a box-' like structure, a, partition wall within saidstructure to provide two chambers within the end shield, a filter screenforming part of said par ti'tion. wall, a motor driven suction fandisposed in. one of said chambers, an electric motor carried by saidpartition wall and disposed opposite said suction fan inthe otherchamber, the wall of said other chamber forming an outwardly open hoodmember surrounding said motor,- whereby the stream of air delivered bysaid suction fan mm said first mentioned chamber traverses said filterscreen to'pas's into said other chamber and to be discharged therefromthrough said open hood rri'ember.v

In a ring spinning and ring twisting frame the combination with an endshield su porting longitudinally extending members of said frame; or anarrangement for neumatically drawing off broken threads, saidarrangement including a box like en'dshield structure, a partition wallwithin said box-like structure to divide said structure into twochambers, a motor driven suc tion fan disposed in one of said chambers,an electric motor carried by said partition wall. and

disposed in the other chamber, a filter compartment pivotally mounted insaid end shield structure, a filter screen disposed in said filtercompartment, said filter screen in normal position of the filtercompartment forming an extension of said partition wall, whereby thestream of air delivered by said suction fan into said first mentionedchamber is forced to traverse said filter screen and to flow into saidother chamber, a pivotally mounted closing gate adapted to interruptcommunication between saidfirst mentioned chamber and the filtercompartment and locking means for holding the filter compartment in saidnormal position, said locking means being operatively connected to saidclosing gate, whereby upon release of said locking means to swing thefilter compartment away from the end shield, said closing gate isactuated to close said first chamber and intercept the air streamdelivered by said suction fan.

6. A ring spinning or ring twisting frame coinprising an end shieldsupporting the endsof 1on gitudinally extending members of the frame,said end shield forming a box-like structure, a substantially verticalpartition wall depending from the top of said end shield, a filterscreen extending from the lower edge of said partition wall towards thebottom of the end shield, said partition wall and filter screenvertically dividing the end shield in two chambers, a suction fandisposed in one of said chambers, a longitudinally extending suctionline abutting at said chamber, an electric motor driving said suctionfan, said motor being secured to said partition wall and disposed in theother of said chambers, and an air outlet in said other chamber inproximity to said motor, whereby the stream of air drawn by the fanthrough said suction conduit and delivered into said first mentionedchamber is forced through said filter screen into said second mentionedchamber and discharged towards said outlet.

7. In a ring spinning or ring twisting frame having pneumatic suctionmeans for broken threads and fibres, the combination with an end shieldsupporting longitudinally extending members of theframe, said end shieldbeing formed by a box-like structure provided with air inlet and outletopenings, a central suction collector for broken threads and fibresconnected to said air inlet opening, a motor driven suction fan mountedwithin said box-like end shield structure to draw in air through saidsuction collector and expel the drawn in air through said outletopening", and a filter screen disposed within said endshield structurein the path of air between said inlet and outlet openings whereby brokenthreads and fibres arriving with the suction air through said collectorare separated from the air by said filter screen.

CHRISTIAN JUST.

No references cited,

